Archive for the ‘Brain cancer’ Category

Cancer Occurs when a Particular

Friday, April 23rd, 2010

Cancer Occurs when a ParticularCancer occurs when a particular type of cells lost normal control mechanisms and starts to grow in a way that the body can not regulate.

While different types of cancers have signs, symptoms, treatments and different prognoses depending on the type of cells involved and the degree of cell growth, childhood cancer is usually easier to control if caught in time and how adults younger the child, the more likely to survive. A baby may have a better expectation of life than a boy of 10 years and that such a young age many of their cells are to be formed and to remove malignant cells from your body we will ensure a full survival.

While the treatments are very cruel and painful and the physical and psychological sequelae are difficult to overcome, now is not the same cancer 20 years ago. People tend to assume that cancer is synonymous with certain death, but with proper diagnosis and following the protocol established for this type of cancer, can be overcome and even have a normal life. At first deal will be difficult years, with many twists and turns, with fear of recurrence of the disease, but you can. (more…)

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Cells that can Activate Cancer Cells in The Brain

Thursday, April 1st, 2010

Cells that can Activate Cancer Cells in The BrainScientists have discovered two genes that may be responsible for the most aggressive form of brain cancer.

The glioblastoma multiforme rapidly invades the brain, causing inoperable tumors, but experts do not yet understand why the brain is so agresivo.

In the latest study by a team of Columbia University, USA, and published in the journal Nature, is located two genes that seem to work in pairs to activate other cells that cause cancer.

Researchers say the discovery raises the hope of developing a cancer treatment.

Genes, C / EPB and Stat3, are active in 60% of patients with glioblastoma.

Patients who participated in the study who showed evidence of both active genes have died within the first 140 days of diagnosis.

While half of the patients with inactive genes remained alive after the time passed.

Master Control

The study leader, Antonio Iavarone, said that “when (the genes) are activated simultaneously work together to activate hundreds of genes that turn other brain cells in a highly aggressive and migratory cells,” he said.

Remove both genes simultaneously, with the help of a combination of drugs, can be a powerful therapy for such patients, for whom there is no satisfactory treatment (more…)

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How the Relationship Between Cancer with Stress

Sunday, March 21st, 2010

China and the first U.S. scientific research shows that there is a direct relationship between cancer and stress.

Studies show edition was published in the journal Nature, the scientists say where the victim cell stress signals that promote tumor that affects the generation of healthy cells around it.
The study was conducted on fruit flies, but studies show that the same genes and the same biological sequences involved in this process present in humans.

So far, it is known that chronic inflammation, the main cause of stress, associated with tumor growth in cancer patients and some experts argue that the negative emotions, stress hormones, inflammation and cancer may be related to each other, although there is no clear evidence.

There is also a consensus that cancer-causing genetic mutation affecting only individual cells, but these studies show that this does not always happen, as various mutations in different cells can collaborate with each other in the generation and development of tumors. (more…)

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Brain cancer and Marijuana

Friday, March 19th, 2010

Cannabis has two sides are very contradictory, the most surprising thing on the reader when there is news that a very large marijuana benefits when we use it wisely, but vice versa, if we make marijuana is as satisfying desires then we consume marijuana is bad for health. If we ask what the benefits of medical marijuana in the world in fact has a positive effect in preventing brain cancer, this fact is based on the results of research conducted by Guillermo Velasco and his colleagues at the Complutense University, Spain.

The results of this study indicate that the active substance in marijuana, THC, increased autophagy process in brain cancer cells. Autophagy is a process by which cells commit suicide by destroying organela-organela in these cells.

The research team found that substances like THC canaboid groups have anti-cancer effects in rats with cancer cells and patients with brain tumors. When mice with human cancer cells are exposed to THC, the growth of cancer cells tend to be inhibited and even reduced. (more…)

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Symptoms and Hazards Cerebral Aneurysms

Wednesday, March 17th, 2010

Cerebral aneurysms can occur in anyone at any age. They are more common in adults than in children and slightly more common in women than men. People with certain inherited disorders are at greater risk.

All cerebral aneurysms have the potential to rupture and cause bleeding into the brain. The reported incidence of ruptured aneurysm is about 10 per 100,000 people per year (about 27,000 patients per year in the U.S.), commonly found in people between 30 and 60. The possible risk factors for rupture include hypertension, alcohol abuse, drug abuse (particularly cocaine), and smoking. Moreover, the state and size affect the risk of aneurysm rupture.

What are the dangers?

Aneurysms can burst and bleed into the brain, causing serious complications such as hemorrhagic stroke, permanent nerve damage, or both. Once it explodes, the aneurysm may burst again and again to bleed into the brain and may occur additional aneurysms. Typically, the break may cause a subarachnoid hemorrhage, bleeding into the space between the skull and brain. A delayed but serious complication of subarachnoid hemorrhage is hydrocephalus, where the excessive accumulation of cerebrospinal fluid in the skull dilates fluid pathways called ventricles that can swell and compress brain tissue. Another complication delayed after the rupture is vasospasm, where other vessels in the brain contract and limit blood flow to vital areas of the brain. This reduced blood flow can cause stroke or tissue damage. (more…)

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What Causes a Cerebral Aneurysm

Tuesday, March 16th, 2010

A cerebral aneurysm (also known as intracranial or intracerebral aneurysm) is a weak or thin in a cerebral blood vessel that protrudes like a balloon and filled with blood. The outgoing aneurysm can put pressure on a nerve or surrounding brain tissue. They may also lose or break, spilling blood into surrounding tissue (called a hemorrhage). Some cerebral aneurysms, particularly the very young, do not bleed or cause other problems. Cerebral aneurysms can occur anywhere in the brain, but most are located along the loop of arteries that run between the underside of the brain and skull base.

What causes a cerebral aneurysm?

Most cerebral aneurysms are congenital, due to an inborn abnormality of an artery wall. Cerebral aneurysms are more common in people with certain genetic diseases such as connective tissue disorders and polycystic kidney disease, and certain circulatory disorders, such as arteriovenous malformations . (more…)

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